Koichi Mitamura

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Sendai, JP

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Patents Grantslast 30 patents

Information Patent Grant
Flux-controlled type variable transformer
- Patent number 6,137,391
- Issue date Oct 24, 2000
- Tohoku Electric Power Company, Incorporated
- Koichi Mitamura
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
PWM power converter using mixed bipolar and static induction transi...
- Patent number 5,021,936
- Issue date Jun 4, 1991
- Zaidan Hojin Handotai Kenkyu Sinkokai
- Jun-ichi Nishizawa
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Optically controlled power converting apparatus
- Patent number 4,719,551
- Issue date Jan 12, 1988
- Zaidan Hojin Handotai Kenkyu Sinkokai
- Junichi Nishizawa
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER